Isolation, characterization, and pathogenicity of Fusarium species causing crown rot of wheat
文献类型： 外文期刊
作者： Ma, Guoping 1 ; Wang, Heng 1 ; Qi, Kai 1 ; Ma, Liguo 1 ; Zhang, Bo 1 ; Zhang, Yueli 1 ; Jiang, Hang 1 ; Wu, Xuehong 3 ; Qi, Junshan 1 ;
作者机构： 1.Shandong Acad Agr Sci, Inst Plant Protect, Shandong Key Lab Plant Virol, Jinan, Peoples R China
2.Shandong Normal Univ, Coll Life Sci, Jinan, Peoples R China
3.China Agr Univ, Dept Plant Pathol, Beijing, Peoples R China
关键词： wheat; Fusarium crown rot; Fusarium spp.; characterization; pathogenicity
期刊名称：FRONTIERS IN MICROBIOLOGY （ 影响因子：4.0； 五年影响因子：5.1 ）
ISSN：
年卷期： 2024 年 15 卷
页码：
收录情况： SCI
摘要： Fusarium crown rot (FCR) is one of the most important soilborne diseases affecting wheat production. To investigate the diversity of the pathogens causing this disease, 199 diseased wheat samples were collected from 13 cities in Shandong province. In total, 468 isolates were obtained, and from these isolates, 11 Fusarium species were identified based on phylogenetic analyses with the translation elongation factor-1 alpha (TEF-1 alpha), RNA polymerase II largest subunit (RPB1), and RNA polymerase II second largest subunit (RPB2) gene sequences. Of these Fusarium isolates, 283 were identified as Fusarium pseudograminearum and the remaining isolates were identified as Fusarium graminearum (n = 113), Fusarium sinensis (n = 28), Fusarium acuminatum (n = 18), Fusarium incarnatum (n = 13), Fusarium ipomoeae (n = 5), Fusarium flocciferum (n = 3), Fusarium proliferatum (n = 2), Fusarium asiaticum (n = 1), Fusarium culmorum (n = 1), and Fusarium oxysporum (n = 1), suggesting that F. pseudograminearum is the dominant pathogen of FCR of wheat in Shandong province. Pathogenicity tests demonstrated that all 11 Fusarium species could cause typical symptoms of FCR on wheat seedlings. The results of the study indicate that a greater diversity of Fusarium species can cause FCR of wheat in Shandong province than that has been previously reported. This is the first report in the world of Fusarium incarnatum, Fusarium ipomoeae, and Fusarium flocciferum as pathogens causing FCR in wheat.
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